Math & science
Quadratic equation
Solve for real or complex roots.
Let’s run the numbers
USDEnter your values, then calculate.
◇ Calculated on your device. No account needed.
THE NUMBERS, MADE CLEARInstant calculation
＝
Your answer starts here
Check your inputs and select Calculate.
Calculated from your inputs; displayed results are rounded.
Formula & assumptions
x = (−b ± √(b²−4ac)) / 2a
Calculated from your inputs; displayed results are rounded.